168 citations
- Beijing Institute of TechnologyCN5 papers
- Zhengzhou UniversityCN4 papers
- University of Chinese Academy of SciencesCN3 papers
- Chinese Academy of SciencesCN2 papers
- Forschungszentrum JülichDE2 papers
- Tiangong UniversityCN2 papers
- Zhengzhou University of Light IndustryCN2 papers
- Academy of Mathematics and Systems ScienceCN1 paper
- Agricultural Bank of ChinaCN1 paper
- Beijing Institute of Optoelectronic TechnologyCN1 paper
- Beijing University of Posts and TelecommunicationsCN1 paper
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math.CA2009★ 77 cited
Complete monotonicity of some functions involving polygamma functions
Feng Qi, Senlin Guo, Bai-Ni Guo
In the present paper, we establish necessary and sufficient conditions for the functions and $α\bigl\lvertψ^{(i)}(x+β)\bigr\lvert-x\bigl\lve…
math.CA2009★ 13 cited
More supplements to a class of logarithmically completely monotonic functions associated with the gamma function
Senlin Guo, Feng Qi
In this article, a necessary and sufficient condition and a necessary condition are established for a function involving the gamma function to be logarithmically completely monoton…